CMS acts for governments, system operators, utilities and energy suppliers, and global infrastructure investors on planning, procurement, transactional, and contentious mandates. The team demonstrates a breadth of expertise in the sector, advising on renewables, nuclear, carbon capture, electricity infrastructure, and data centre projects. Practice lead Munir Hassan is a go-to for power and offshore wind projects. Charles Currier focuses on energy transactions, acting for utilities, developers, and financial funds. Philip Ashley assists on energy regulatory disputes. Energy decarbonisation specialist Dalia Majumder-Russell leads the practice’s hydrogen and CCUS segment. Rowena Van de Grampel joined the team in 2025, bolstering the practice’s ability in energy financing mandates.
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Key clients
- Fidra Energy Limited
- National Grid UK Limited
- Polskie Elektrownie Jądrowe sp. z.o.o.
- Transmission Investment LLP
- Octopus Energy
- Ministry of Climate Policy and Green Growth in the Netherlands
- HYRO Energy Limited
- National Grid Electricity Transmission PLC
- AXA Investment Managers Alts
- BW ESS UK Limite
- Summit Energy
- Rezolv Energy
Work highlights
Advised Fidra Energy on the development and financing of the Thorpe Marsh BESS Project at 1.4GW/3.1GWh.
Advised National Grid on all aspects of its £59bn High Voltage Direct Current supply chain framework.
Advising the Dutch Government (Ministerie van Klimaat en Groene Groei) on the legal, regulatory and commercial frameworks for its new nuclear programme.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Munir Hassan
Other key lawyers
Charles Currier; Philip Ashley; Michael Carroll; Dalia Majumder-Russell; Thomas Forman; Vini Cowden; Rowena Van de Grampel